Improvement in sash-locks



`Eble plow, cut-ting about klive-eighths' or `ters inch wide,'zn1d halt'an inch deep.

suited-hm @sind l @wie GEORGE W. D'UBUIssoN, or NoRWlCH, CONNECTICUT.

IMPROVEMENT IN SAsH-Locxs.

p The `Schedule*referred to in these Letters-Patent and making pari: ofthe same To all whom it may concern.:

,p Be it known that I, GEORGE W. DUBUIssoN, of Norwich, in the countyofVNew London and in the i State of' Connecticut, havefinvented certainnew and p marked thereon making :i part of this speeiliczttion.

`The nature of my invention consistsl in' the con-l struction amdarrangement ofa,` szish-stop and lock,

as will belhereinztl'ter 'i'nlly set i'orth.`

In order toenable others skilled in the art to which my inventionappertains to make and use the i smne,`1 will nowl proceed to describeits construction and operation, refexTingto the annexeddrznving, in

Figure Al is :t perspective view of :L window-sash and frame withmyvimprovement attached, und

Figure 2 is :t vertical section, showing the stop and *A represents thewindow-snsh, `and B the window frame.` 1n the outeredgevof one of theupright rails of the window-sashA, nstrip is taken ont by o snit'-threengliin `In the recess thus formed is insertCl :t strip, G, of

d corrugated hard wood, iiush with the thee of the rail.

1n `place of the corrngatedfwood str a, corrugated' bar of metal orother suitable mnterizilnwy be used.

K In a recess `in they window-frame B 1s inserisci-1d spring, D, bent orstraight, as maybe desired; with corrngationsto fit those inthe strip orbnr B.

On the inner side, of the spring D is placed a camshaped button, E,which is operated by al knob or 'thumb-piece, Gr, on the outside of thecasing, both the button and the knob, being on the `same shaft, possingthrough the' inner sideof the-casing.

The but-ton E, fitting against the ii'znne'rtnd dropping into ncori-ligation inthespring,`mztkes the whole solid, and the sash Cannotbe raised or lowered. By turning the buttonV away from the spring, thesash can readily beratised or lowered :it will.

The spring D forms the sash-stop, as it holds and supports the sztsh at:my height it muy beplnced,zn1d, by the nseot' the button E, the sashbecomes locked.

This device is very simple, chesp, vnnd easily :ipplied to anywindow-frame. 'outside but the knohor thumb-piece G.v

I :nu aware that the devices herein shown :md described, when takenseparately, are of themselves not new.`

In combination with the corrugated strip C on the window-sash A, thecorrugnted spring D, bent U- p ,t shaped, and operated by the czhn Einzu recess in the `freine by means of the handle G, all as set i'orth.V

`\;`In testimony that rI claim `the foregoing, I have heren to set myhand and seal this 28th dey of March, 187()r j" GEORGE XV. DUBUISSON.[L.- 5.] l-MWitn'esses SOLOMON LUCAS,

G. L. BENJAMIN.

Nothingztppenrs 0n the

